كل يوم 6 اسئله اتحداكم فيها [متجدد يوميا]

[سونهام يغمور]

Methylcytosines are common sites for mutations because they


1. are not recognized by the proofreading activity of DNA polymerase.
2. can mispair with adenine.
3. can deaminate to thymidine.
4. prevent discrimination between the daughter and parental strand.
5. can deaminate to uracil.




Creatinine levels in the urine and blood are used to test kidney function. Creatinine is useful for this test because it is not significantly reabsorbed nor secreted by kidney, and metabolically it is:

1. produced at a constant rate.
2. produced only in kidney.
3. a storage form of energy.
4. a measure of muscle mass.
5. a precursor for phosphocreatine.




Which of the following techniques yields the most information about the positional and spacial characteristics of all atoms in the protein?

1. automated Edman analysis
2. circular dichroism spectroscopy
3. magnetic resonance spectroscopy
4. reversible unfolding/refolding
5. high voltage electrophoresis





Elastin is like collagen in each of the following ways EXCEPT

1. it has a higher than average content of the amino acid proline.
2. it is found in striated fibrils.
3. it is covalently cross-linked to other elastin molecules through structures derived from lysine residues.
4. approximately 30% of its amino acids are glycine residues
5. it is a protein




A dietary deficiency of the following cofactor can lead to the Wernicke- Korsakoff syndrome.

1. niacin
2. riboflavin
3. thiamine
4. biotin
5. lipoic acid



Metallic salts such as ferrous chloride are used to prevent emission of odorous gas from manure storege. They:

1. reduce hydrogen sulfide production
2. chelate malodorous gas
3. inhibit production of non volatile fatty acids
4. increase vapor pressure of malodorous gas
5. help producing non-odorous gas

اللى يجاوب على الاسئله السته بشكل صحيح له هديه


:36_3_12[1]:



معاكم الى الساعه 12 من منتصف هذه الليله

[HPLC]

Methylcytosines are common sites for mutations because they

can deaminate to thymidine




Creatinine levels in the urine and blood are used to test kidney function. Creatinine is useful for this test because it is not significantly reabsorbed nor secreted by kidney, and metabolically it is:

1. produced at a constant rate.



Which of the following techniques yields the most information about the positional and spacial characteristics of all atoms in the protein?

automated Edman analysis




Elastin is like collagen in each of the following ways EXCEPT

2. it is found in striated fibrils



A dietary deficiency of the following cofactor can lead to the Wernicke- Korsakoff
syndrome

3. thiamine



Metallic salts such as ferrous chloride are used to prevent emission of odorous gas from manure storege. They

1. reduce hydrogen sulfide production

=========

اربعه انا قدرت اجاوب عليهن

و2 لا:36_1_2[1]:
رحت وطالعت في مراااجعي>>>>يرحم ربي الدرااسه وسنينها>>>>>الوظيفه صفرت المعلوماااات كلهن


ها ويش هي هديتي !!

Methylcytosines are common sites for mutations because they



1. are not recognized by the proofreading activity of DNA polymerase.
2. can mispair with adenine.
3. can deaminate to thymidine.
4. prevent discrimination between the daughter and parental strand.
5. can deaminate to uracil.

=============================


Creatinine levels in the urine and blood are used to test kidney function. Creatinine is useful for this test because it is not significantly reabsorbed nor secreted by kidney, and metabolically it is:


1. produced at a constant rate.
2. produced only in kidney.
3. a storage form of energy.
4. a measure of muscle mass.
5. a precursor for phosphocreatine.


=============================


Which of the following techniques yields the most information about the positional and spacial characteristics of all atoms in the protein?


1. automated Edman analysis
2. circular dichroism spectroscopy
3. magnetic resonance spectroscopy
4. reversible unfolding/refolding
5. high voltage electrophoresis



=============================


Elastin is like collagen in each of the following ways EXCEPT


1. it has a higher than average content of the amino acid proline.
2. it is found in striated fibrils.
3. it is covalently cross-linked to other elastin molecules through structures derived from lysine residues.
4. approximately 30% of its amino acids are glycine residues
5. it is a protein

=============================


A dietary deficiency of the following cofactor can lead to the Wernicke- Korsakoff syndrome.


1. niacin
2. riboflavin
3. thiamine
4. biotin
5. lipoic acid

===================

Metallic salts such as ferrous chloride are used to prevent emission of odorous gas from manure storege. They:



1. reduce hydrogen sulfide production
2. chelate malodorous gas
3. inhibit production of non volatile fatty acids
4. increase vapor pressure of malodorous gas
5. help producing non-odorous gas

الثاني مر علي في الطبية
والثالث في التحليلية
والبقية حاولت فيها

=======================


الفقرة الغلط خلي عليها نص درجة بس
والصح عليها درجتين

ااااه والله تذكرت ايام شحتة الدرجات من الدكاترة
خخخخخخخخخخخ

[سونهام يغمور]

راح اعطي فرصه للباقيين كمان ساعه

وهـ معقول محد جاوب الا 2 بس

بس عموما في ناس جاوبوا 100% صح << بعد ما غشوا من المراجع

و في ناس ........... خساره بس


و خليني اقول في اكثر من هديه

و المسابقه باذن الله راح تستمر لمده هالاسبوع الاجازه

كل يوم كم سؤال لحد ما نجمع اكبر عدد من النقاط


:eek: <<< مدري مين دا


و اللى حاسس اجابته غلط له فرصه يعدل

[HPLC]

المشاركة الأصلية كتبت بواسطة Bioc

راح اعطي فرصه للباقيين كمان ساعه

وهـ معقول محد جاوب الا 2 بس

بس عموما في ناس جاوبوا 100% صح << بعد ما غشوا من المراجع

و

open book

خخخخخخخخخخخخخ


يعني انا 100%

:cool1:

ومتى الهداياااا<<<<قلقان يبي هدية<<<<محد قد هداه :cool1:

[سونهام يغمور]

على ايش مستعجل


ايش تبي هديتك

[HPLC]

المشاركة الأصلية كتبت بواسطة Bioc

على ايش مستعجل


ايش تبي هديتك

تواجدي هنا اكبر هديه


مننديات تعليمية نادره جدا

وهذة اكبر استفاده,,,
===========
على العموم كانت مجرد مراجعه

ومراجعه بالاسئلة في المنتديات اكبر متعه وخاصة ليا

============

وثاني مره

مشكورة يالغلا,,,,

وبارك الله فيكم جميعا

[سونهام يغمور]

الاجابات الصحيحة

Methylcytosines are common sites for mutations because they


3. can deaminate to thymidine.



Creatinine levels in the urine and blood are used to test kidney function. Creatinine is useful for this test because it is not significantly reabsorbed nor secreted by kidney, and metabolically it is:

1. produced at a constant rate.


Which of the following techniques yields the most information about the positional and spacial characteristics of all atoms in the protein?

1. automated Edman analysis



Elastin is like collagen in each of the following ways EXCEPT

2. it is found in striated fibrils.


A dietary deficiency of the following cofactor can lead to the Wernicke- Korsakoff syndrome.

3. thiamine



Metallic salts such as ferrous chloride are used to prevent emission of odorous gas from manure storege. They:

1. reduce hydrogen sulfide production

:36_1_11[1]: HPLC

مبروك الاجابات الصحيحه عندك 6 نقطة

خالد 3 اجابات صح و 3 خطأ
لك 3 نقاط

[سونهام يغمور]

Xylose has the chemical formula C5H10O5. What type of substance is it

a. A fatty acid
b. An amino acid
c. A monosaccharide
d. A nucleotide


2. Which of these is usually true of lipids?

a. The ratio of hydrogen to oxygen atoms is always 2:1
b. They do not dissolve well in water
c. They contain nitrogen
d. They contain many hydrogen bonds


3. Which base in an RNA molecule is complementary to adenine?

a. cytosine
b. guanine
c. thymine
d. uracil


4. Triglycerides are a type of:

a. Carbohydrate
b. Lipid
c. Protein
d. Nucleic acid


5. What does transfer RNA normally bind to?

a. DNA
b. mRNA
c. amino acids
d. Both B and C


6. A substance that tastes sweet and is soluble in water could be:

a. A monosaccharide
b. A disaccharide
c. A polysaccharide
d. Either A or B

[سونهام يغمور]

فين الاجابات

ياجماعه و الله الموضوع سهل